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Subwoofer Displacement Formula:
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Subwoofer displacement calculation determines the total volume occupied by subwoofer drivers in an enclosure. It's essential for designing properly sized speaker boxes that account for the physical space taken up by the drivers themselves.
The calculator uses the displacement formula:
Where:
Explanation: The formula calculates the total displacement volume by multiplying the number of drivers by the equivalent volume (Vas) of each driver.
Details: Accurate displacement calculation is crucial for designing speaker enclosures that provide optimal acoustic performance. It ensures the internal volume of the box accounts for the space occupied by the drivers.
Tips: Enter the number of subwoofer drivers and the Vas (equivalent volume) for each driver in liters. Both values must be positive numbers.
Q1: What is Vas in subwoofer specifications?
A: Vas represents the equivalent volume of air that has the same compliance as the speaker's suspension system. It's a key parameter for enclosure design.
Q2: Why is driver displacement important?
A: Driver displacement affects the net internal volume of the enclosure, which impacts the box tuning and overall sound quality.
Q3: How do I find the Vas value for my subwoofer?
A: Vas is typically provided in the subwoofer's specifications sheet from the manufacturer. It's measured in liters or cubic feet.
Q4: Does this calculation include other enclosure components?
A: No, this calculation only accounts for driver displacement. Other components like bracing, ports, and internal structures require additional volume calculations.
Q5: Can I use this for multiple different subwoofers?
A: For mixed subwoofer setups, you would need to calculate displacement for each type separately and sum the results.